文档介绍：6+8=
9+2=
7+4=
5+5=
4+9=
10+6=
9+5=
10+4=
6+10=
8+5=
14-6=
7+2=
6+5=
6+8=
9+6=
8+5=
3+6=
8+5=
7+9=
5+7=
6+8=
4+7=
5+9=
9+4=
7+8=
6+5=
4+9=
5+7=
7+7=
8+4=
11+1=
11+2=
11+3=
11+4=
11+5=
17-2=
17-3=
17-4=
17-5=
17-6=
13-6=
18-9=
11-7=
6+9=
()+5=12
40+3=
20+7=
60+4=
70+4=
30+6=
33-3=
76-6=
17-7=
60+9=
5+80=
17-9=
13-6=
14-5 =
15-6=
18-
(
) =9
12-9=
12+8=
11-9=
4+8=
5+
(
) =14
16-4=
7 +9= 16
－ 7=
2 +17=
11-
(
) =5
12－ 8=
17-8=
18-1=
17-8=
17-
(
) =10
15-7=
10-4 =
14+6 =
16-9=
14+
(
) =18
15+5=
16-8=
14-7 =
12+8 =
(
)
+8=12
8+6=
14-10 =
8+8=
14-9=
(
)
-12=3
11+6=
12+4=
12+5=
12+6=
12+7=
17-7=
16-1=
16-2=
16-3=
16-4=
8+60=
43-3 =
80+8=
49-9=
(
)
-2=30
7+50=
46-6=
10+9 =
37-7=
(
)■
-8=80
17+1 =
15-8=
16+3=
5+8=
( )+5=18
9 + 2=
8
+ 4=
7
+ 5=
6
+ 6=
5
+ 6=
15-9=
14
-8=
12
—7=
11
—6=
13
—5=
9 + 4=
7
+ 8=
7
+ 7=
6
+ 5=
5
+ 7=
12-9=
16
-8=
15
—7=
14
—6=
11
—5=
9 + 6=
8
+ 8=
7
+ 6=
6
+ 8=
5
+ 8=
16-9=
11
-8=
13
—7=
15
—6=
12
—5=
12+8=
13+1=
13+2=
13+3=
13+4=
18-7=
18-8= 17-1
=
17-2=
17-3=
19－ 9=
18
-8=
43
-3=
65
—5=
72
-2=
90+8=
50
+ 8=
7
+ 40=
6
+ 90=
5
+ 90=
13-9=
13
8=
14
7=
12
6=
14
5=
9+3=
9
+ 8=
7
+ 8=
6 +7=
4
+ 9=
1